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Plastic with the lowest Dielectric Constant and Water Absorption
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Posted by: PW

04/16/2003, 03:19:56

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Dear all,

I need to find a plastic which has the lowest Dielectric Constant and Water Absorption.

I looked at Teflon and crosslink polystyrene, but I still want something better.

Can you please point me to the right source for such info?

Many thanks.
 








Modified by Cragyon at Mon, Jul 07, 2003, 14:49:44

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Re: Plastic with the lowest Dielectric Constant and Water Absorption
Re: Plastic with the lowest Dielectric Constant and Water Absorption -- PW Post Reply Top of thread Forum
Posted by: rjbeng ?

06/18/2005, 13:56:49

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Take a look at Noryl;Polyphenylene / PPO

Dielectric constant is a little lower but the water absorption is a lot lower.







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Re: Plastic with the lowest Dielectric Constant and Water Absorption
Re: Plastic with the lowest Dielectric Constant and Water Absorption -- PW Post Reply Top of thread Forum
Posted by: senator46 ?

06/17/2005, 15:15:11

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When you are considering Teflon you must be sure to look at the whole group of flouoroplymers. The Teflon name is a DuPont trademark. But Dupont puts the teflon name on three distinctly different fluoropolymers. There is PTFE Teflon (polytetrafluoroethylene). There is FEP teflon Fluorinated Ethylene propylene . Thjere is PFA Teflon perfluoroalkyd. There are also other fluoropolymers such as ETFE, ECTFE, etc.
If your application is electrical insulation, you may also want to consider Kapton (polyimide) materials.






Modified by Administrator at Fri, Jun 17, 2005, 21:23:24

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Re: Plastic with the lowest Dielectric Constant and Water Absorption
Re: Plastic with the lowest Dielectric Constant and Water Absorption -- PW Post Reply Top of thread Forum
Posted by: gabriel_fekete ?

04/30/2003, 22:12:58

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check company SOLVAY
MATERIAL TYPE
IXEF






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Re: Plastic with the lowest Dielectric Constant and Water Absorption Agree
Re: Plastic with the lowest Dielectric Constant and Water Absorption -- PW Post Reply Top of thread Forum
Posted by: Cragyon ?
Bart
04/29/2003, 10:47:20

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I would get the free 14 day trail offer here at engineers edge and research that database. I think the banners say they have over 40,000 plastics data sheets. I believe that are searchable buy many different properties and criteria.

Check it out here /ides/ides_compare_product.htm







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